SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-026-4425-4
Flexible and weavable alternating-current electroluminescent (ACEL) fiber devices are pivotal for wearable displays and human-computer interfaces, yet their intrinsic lack of color tunability restricts high-density information interaction. This study presents a dynamically color-tunable electroluminescent fiber device with a coaxial winding structure that integrates multiple fiber electrodes emitting the three primary colors. Through simple voltage driving, the device achieves a color gamut covering 131.07% of the sRGB standard, enabling arbitrary full-color tunability, including standard white light with CIE coordinates of (0.31, 0.33). The emission peak is continuously tunable over a 161.7 nm range, a 4-fold enhancement compared to previously reported ACEL fibers. The coaxial winding architecture is compatible with large-scale fabrication, yielding hundred-meter-scale fiber devices with a luminance variation of only 2.76%. The electroluminescent performance remains stable under stringent industrial standards: 10,000 friction cycles, 20 accelerated washing cycles, and 10-day storage at 105 °C and −20 °C. Integration into a smart textile watchband demonstrates real-time heart rate visualization via progress color changes and gesture-controlled color switching, validating its potential as an effective human-computer interface.
SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-026-4177-3
Chirality profoundly influences tumor therapy by regulating key physiological processes, yet the link between chirality and therapeutic properties of atomically precise metal nanoclusters (NCs) remains poorly understood. Atomically precise Au25 NCs protected by chiral cysteine ligands (L-Au25(cys)18, D-Au25(cys)18, and Rac-Au25(cys)18) were constructed and systematically investigated to elucidate the association between chirality and tumor therapeutic performance. Although no significant difference in enzyme-like activity was observed among the three NCs, Rac-Au25(cys)18 exhibited enhanced reactive oxygen species generation under 808 nm laser irradiation, achieving superior phototherapeutic effects in both in vitro and in vivo tumor models. The chiral Au25 NCs induced distinct cell death pathways: L-Au25(cys)18 primarily triggered ferroptosis, D-Au25(cys)18 induced both ferroptosis and apoptosis, and all three NCs activated disulfidptosis. In vivo, tumor inhibition rates for L-Au25, D-Au25, and Rac-Au25 groups were 46.7%, 42.5%, and 68.3%, respectively, with no significant body weight fluctuations and minimal hepatorenal toxicity. Hematological and histopathological analyses confirmed favorable systemic biocompatibility. This work clarifies the correlation between chiral structures and tumor therapeutic performance of gold NCs, providing experimental insights and theoretical support for the design of novel chiral nanomaterials and optimization of precise tumor phototherapeutic strategies.
Chinese Journal of Environmental Engineering•2026•DOI: 10.12030/j.cjee.202410085
Surface runoff pollution has become a significant source of water contamination. This study constructed an integrated composite bioretention system comprising straw, aquatic plant, and biochar zones for purifying urban surface runoff, aiming to meet the standards for reuse as landscaping water. The system's performance in removing conventional pollutants and polycyclic aromatic hydrocarbons (PAHs) was investigated, along with microbial community structure analysis. Results showed removal efficiencies of 81.1% for COD, 98.1% for TN, 79.1% for TP, and 90.3% for TSS, with effluent meeting the 'Water Quality for Scenic and Recreational Use' (GB/T 18921-2019) standard. The system exhibited robust resistance to pollutant and hydraulic loading. The alkali-modified straw zone was the primary pollutant removal region, facilitating physical adsorption and capture of suspended solids, while released carbon sources enhanced total nitrogen removal. This zone exhibited the highest microbial richness, with relative abundances of Proteobacteria and Firmicutes at 54.3% and 21.9%, respectively. The system effectively removed all 16 priority PAHs, reducing effluent toxicity equivalent by 86.5%. The straw zone completely removed four high-molecular-weight PAHs (BaP, DahA, BghiP, IcdP), while aquatic plants and biochar effectively removed medium- and low-molecular-weight PAHs.
Chinese Journal of Environmental Engineering•2026•DOI: 10.12030/j.cjee.202510084
The rapid expansion of lithium battery industries has elevated lithium resources to strategic importance, yet lithium extraction generates 8–10 tons of slag per ton of lithium salt, with complex heavy metal content and high leaching risks. This study improves conventional alkali activation by employing a composite activator and multi-stage thermal assistance to achieve self-solidification of lithium slag, simultaneously immobilizing multiple heavy metals while producing high-strength materials. Under full slag conditions, the mechanical strength of solidified materials ranged from 3.48 to 8.25 MPa; after optimization, strength increased by 137.07%. Average immobilization rates for various heavy metals rose from 97.26% to 99.77%. In simulated acidic, alkaline, neutral, high-salt, acid rain, and leachate environments, efficient immobilization was maintained, with leachate concentrations below regulatory limits. The improved activator and thermal process reduced structural defects, promoted formation of the key Si-O-Al framework, and ensured structural integrity, enhancing both mechanical strength and heavy metal immobilization. The cost of slag solidification was approximately 185–200 CNY per ton, significantly lower than conventional methods, with low energy consumption, no high-temperature calcination, and reduced equipment and reagent requirements, supporting scalability.